During lowering charge level with water spraying into the blastfurnace, the gas is recovered and the charge level is judged by the blast volume not by special stock rod.
操作时采用空料线法(从炉顶打水)，回收高炉煤气，不安装特殊探尺，用风量判断料面行程。
2
The gas flow in blastfurnace with various burden charge patterns has been analyzed by numerical simulation with finite difference method.
用有限差分法对高炉内气体流动行为进行了数值解析，并系统地分析了不同料床结构对气体流动行为的影响。
3
Pellets as an ideal metallurgical furnacecharge are widely used in blastfurnace and electric furnace smelting as far as the metallurgical properties are concerned.